Automatic aerodynamic stabilizer for airplanes



13% 1932- o. E. BEMBERG AUTOMATIC AERQDYNAMIC STABILIZER FOR AIRPLANES Filed Oct. 5. 1931 3 Sheets-Sheet 1 Dec. 6, 1932. ,o. E. B EMBERG AUTOMATIC AERODYNAMIC STABILIZER FOR AIRPLANES 5 Sheets-Sheet 2 Dec. 6, 1932?. o. E. BEMBERG 1,890,363

AUTOMATIC AERODYNAMIC STABILIZER FOR AIRPLANES Y Filed Oct. 5. 1951i" 3 Sheets-Sheet s hr enth a Patented Dec. 6, 1932 I dw qhmmnn l Beams Aucroithrro Annonvmime srais trznn son Amnnanns Application filed fixiteber- 5,195..1, Serial No; 567505 and iii'llrance-ili'gnst 26, 1931;

' i Th s invention ha foritsfobj t. aidevice,

ppl c ble to Call xi t gahphmaintmded .tolai iomatically ensure the; lateral and eventual y longi i a s ebilityt a rplanes nd e r machi e fe erielne igatiom .The prin pl tv h mve tlen ensi t m fcr atin ver i al l n i n enen ent o th os llatien f h a tplana an to take bea ing- Qmmemb r's. m nta ne in hlS rtica for automat c lly a tua ing the ability tone tro a.

y takin a bea i g o the airpl ne, butselehis pparatus consi s in. ux l a y device connecte tothe airp ane t aslnsle point, either Thy a universalor Garden joint,

or bytwo links, two hooks, or asimpleflexible bond, this device having planes or surfaces on which the air reacts during flightso as to lift it abovethe airplane, the plane. defined bfv its longitudinal axis'and the centre of the. above joint beingalways verticaljduring flight. -The invention comprises; a form. OfjlGOH- structi on in which the above device-is constituted a: series of planes intersectin on an axis suitably raised relatively to the horizontal. about-which it looselv rotates, and bva rudder, placed behind. and also constituted by a grouplofl planes which forces'th group of intersecting planes to come in such a position that a reaction of the air results therefrom, thus producing a vertical upward thrust.

The actuation is effected by means of a ertical shaft rigid with the frame of the auxiliarv device. A vertical auxiliary plane, loose about this shaft, can be provided for giving a greater efficiency to the balancing or wing flap control. 7

The invention is illustrated, but by way of example only, in the accompanying drawings,

in which:

Fig. I is an elevation showing an airplane provided with the new device. Fig. Qis a corresponding plan view. Fig. 3 is an elevation, onan enlarged scale, of the device forming thesubject-matter of the invention. i

Win 9t a a rp ane Jan htqtl e'upper,

-13. 'sanerfer ed etsecurina heh fis'ihlth 11 In other words, the invention Ql i an, appar tus in WhlCh oreactlon ls'ebt l'ned on one of the edges ofthe Cardan joint-(Fig.

l'l hait'ifelidthe eenvergceetiplanes w lltheree-. 1 front-vi w t e airp an bein 'ess met tatiqn m is hen? Fi s-fl n 7 i lustre Asshewn; in; the, r d

wines ib tivj he s enie si seeureclasuppo taoewh is; bel ed nangle; reebietM shape Very open V, Fig. 5, one of the sideisoi' P res a, and t e L e her- ,endx in graliwithia Garden joint. :G-Z llhe 11119.net rest 1 o this na ed. by th, 2 t Irn daisyioi te ts s ape e conve e t; Plane t n. eventua ly, b rep aeedhy edihl dlt nils), is. 7 We y der'QE s-F, needy-mounted .1 he r-shaft 'f- A theree teed ef thesp an d is e mteq riete iylml l lene In ies le-le sey r nt n abei its sha t th' eatens en f Whi chne'sses th ong-hike centre (1 theGatde iQint-e3 a; a.. ie e ewath Qerd= n i int and. t e s pport a arv t eal shaf gs eurei t thesp r-d'; this jvertial shaft 11 is arranged as near as *1- rose blen.the zve tiealextens onnf hee Of the a daejQint abou whi h; pl n r? le s lr e a e fllh e tr ls ot rha ancing lwina e s it Fi -,2, a esecu ed at l to; th s. pl ne -A supper-t Qer y he a pen i -whe trest: The operation isas follows: a

When atlrest, the'daisyand its ervesito sp ml t A), y ngon: the s d rlat er"heringtp o d ab e t-th l ngitudinal xi at the Garden .J'Qi lt q de st a Qnthe upport rangedate levelflowerthanthe ,Cardajn joint, s il r te iF g- .lnj aposi en, the

' plane rudder it will act and will hold 'thefore have an incidence relatively to the horizontal.) V

If the airplane starts, as soon as the speed is suflicient, the entire-device will tend to pivot, that is to say, to plane itself askew in the wind. But, at this moment. the multiairplane andv the incidence of the shaft fwill be so calculated that with a speed mate- "rially less than that necessary for causing the airplane to get off, the daisy must rise vertically. The convergent planes 9 being loosely mounted on their shaft; whatever may be the wind striking against the e planes. the

uprights 6 will remain in a vertical position.

- The daisy will exert above the wings, whatever may be the speed of the air lane, a ve'r tic al pull and'will hold the shaft 1 in avertical position.

If the airplane tends to'incline laterally,

the support arigid with the airplane, will take the same inclination. But. owing to the Cardan joint 0, the vertical pull of the daisy willhold the device, andthe uprights e and shaft 2' will remain in the vertical plane.

Consequently, the planej will *exerta pullon one of the controlso'and' will release the op]- posite control, that is to say will causethe side balancinglflap's to act, so as to stabilize the airplane in thelateraldirection;

of the controls relatively to the plane In order to diminishes much as possible The shaft 2', being placed 'ust below the Cardan' joint, the 'sp'ard can oscillateabout theaxis of the Cardan joint and even pitch, without materially modifying the positions the tractive stress on the plane I- the main balancing or wing flaps instead of being conhinge, will becon's'tituted by a simple plane with central axis so as to form compensated 1 planes; a leverarm will acton eachbalancing structed as usual, that is to say, with a side flap which will lower or rise aska sim l shutter. I i Y a a V Concerning the 'controls themselves,.the

7 can bemade in any suitable manner. I v a The abovearrangements aregiven by way of example only, all the details of construe- 'tion; the; forms; dimensions and materials 7 planes the group ofwhich' freely rotates on of planes, a swivel connection with the air-,- plane, and means for us ngthemovements of above system for acting on the controls.

2. An aerodynamic device adapted to au- 7 tomatically ensure the stability of airplanes and other apparatus for aerial navigation, comprising a wind vane formed by a group of intersecting planes freely rotating ona shaft, airudder integral-with the said group .ofvplanes and also formed by intersecting planes the group of which freely rotates .about the shaft, a swivelconnection with the airplane, and means for using the movements of above system for acting on the controls.

3. An aerodynamic deviceadapted to automatically ensure the stability of airplanes and other apparatus for aerial navigation, comprisinga wind Vane. formed group 'of-1nt-'ersect1ng planes freely rotatmg on a.

shaft, a rudder integral'with the said'group planes the group of which freely rotates on the shaft andthe shaftof which forms an angle with that of the Wind'vane, aswivel "connection with the airplane, and means for using the movements of above system for acting on the-jcontrols..- I 1 4:. An aerodynamic device adapted toau tomatically ensure the stability of V airplanes I and other apparatus foraerlal"navlgatlon, V= comprising a wind vane formed'by a group of intersectin'g planes freely rotatingjon a shaft, a rudder integral withthe said group of planes, and also formed by intersecting the shaft and the shaft of which forms an through the center of the joint, a swivel connection with the airplane, and means for using the movements of abov ing on the controls.

e systeni for act- Y ofplan'esfand" also formed by intersecting- I Q: N

angle with that of the wind. vane and passes The foregoing specification of 2 Auto 7 matic aerodynamic stabilizer for airplanes signed by me this 18th day of September o'rTo EDUARDO BEMBERG,

i used'can'bemodifiedvaccordingto circurn-' stances. without departing thereby from the [principle of fiventionu V 11 Anaerodvnamic device adapted to (1111- 7 tom'atically ensure the stabilitv of airplanes and other apparatus for aerial navigation, 7 v g comprising ajwind vanejformed bv'agr'oup of intersecting planes freelv rotating on a a shaft,-a rudder integral-with the said group 

